CEA/EIA-608, CEA/EIA-708 (Embedded)

If your input captions are in any of the following formats, the service handles them
as
"embedded":

CEA-608

EIA-608

CEA-708

EIA-708

Number
of Captions Selectors for Embedded Captions

If
you
are doing embedded-to-embedded, create only one captions selector, even if
you want to include multiple languages in the output. With this scenario, AWS Elemental
MediaConvert automatically
extracts all languages and includes them in the output.

If you are doing embedded-to-other, create one captions selector for each language
that
you want to include in the output, up to four selectors.

If you are doing embedded-to-embedded in some outputs and embedded-to-other in other
outputs, create one captions selector for the embedded-to-embedded, and then create
up to
four more selectors for the embedded-to-other, one for each language that you want.

Captions Selector Fields for Embedded
Captions

Source: Choose Embedded

CC channel number: This field specifies the language to extract.
Complete as follows:

If you are doing embedded-to-embedded captions (that is, you create only one captions
selector for the input embedded captions), AWS Elemental MediaConvert ignores this
field, so keep the default
value for CC channel number.

If you are converting embedded captions to another format, (that is, you create several
captions selectors, one for each language), specify the captions channel number from
the
input that holds the language that you want. To do that, select the channel number
from the
dropdown list. For example, select 1 to choose CC1.

Note

AWS Elemental MediaConvert doesn't automatically detect which language is in each
channel. You can
specify that when you set up the output captions, so that AWS Elemental MediaConvert
passes the language
code metadata for the captions channel into the output for downstream use.